Exit-door lock



May 5, 1925. 1,536,829

H. W. DYER EXIT DOOR LOCK Filed April 30, 1925 l i I 47 I. J 1 4g o o aa n L 1/ n w 9% 1' 29 2 W 7 Mam 5mm.

' 7 ATTORNEY.

Patented May 5, 1925, .1

' afoul-T D- STATES PAT-"EN T QF F-ICE.'-

State of New York, have inventedcertain newand useful Improvements inExit-Door Locks, of which the following is a specification.

This invention relates to door locks and particularly to door locksofthe panic bolt type and is intended for application on double doors.-The objects of the invention are to provide means wherebyin a doubledoor pressure against either door on the insidewill result in unlatchingthe "door and permit it to open; these results are obtained without;interfering with the normal openclosing edg of the stationary debit and12is the closing edge ofi'the moving door. f "The bearing plateil3 is'securedf to 1 1 and lias the bearing' lugs" 14" formed integraltherewith. These lugs support shaft 15' to which the releasing dog 16is'se'cured, also th'e releasing ing and closing of either door- Theseand other objects of the invention will be more iullyunderstood fromthefollowing specificationandthe accompanying drawings. in which Fig. 1,isa front view of a lock oper- -a ting-Inechanism applied to one of thedoors,

Fig. 2, is a side view of Fig. 1; Fig. 3 is a .loekoperating mechanism iapplied to .the

other door, Figs. d and 5 are details showing the construction used inFig. 3. Fig. 6 shows. the operative relation between. the mechanisms oneach door Fig. 7 shows the invention applied to a double door and Fig. 8shows the construction of a latching mechanism that may be used at thetop of the door. Similar reference characters are used for similar partsthroughout the various illustrations. I

This invention is shown applied to what is .known as a paniebolt lock,that is to a'type having a horizontal bar on the inside which, whenpressure is applied thereto unlatches the loc-k and permits the door toopen outleasing purposes and a similar.arrangement may he provided onthe inside. It is often desirable that the panic bolt type ofrelease beapplied to both doors so that pressure on either door will unlatch thestationary door and permit both doors to open outwards. The presentinvention is designed to accomplish this purpose.

The lock operating mechanism on the sta- 1 Y HARRY w. DYER, or NEW YORK;Iii-Y.

v nxrr-noon'riocxlj ,f v

div nation filed April 30, 1923. Seria1 iTol 35 5 i'1alatching position.

tionary door isjpr'oyided'witli'a releasin located lose to thedooropeiiing and ajreleasingarinis provided on the otherdoor close tothe opening but ne rer the same'jso that either door may be'opene'd iirclosedbythe knob or latch Without conflicting with each other. The first'operation b'f the 'releafsing arm on the movingdoo'r is 'tdm'o've ithori zontally into engagement with the. releasing arm of't'he stationar;j'door'andzthe eontiniied movement moves the latter rin'i'nto the .un-

doors open together thi dreleasing pressure t eipam l r'est r s ithe mid-S ns to their normal position "the clearance of the door opening.

Referring to'the drawings arm 1? which develops into ransit-n 22. tCl]2ICCI1t the] opening ll'gffivoted" on shaft 15 by'jaw 19 .is thehorizontahpanic.

bolt 21 as shown. Thisb'oltis loosely pivot ed on shaft .15but has an'en'tension or pad indicated at 20 Whichengageslti causing the latter torotate as this .b t'is pressed in- ,ward,.while the diig is freeitor'otateindependently by pressure applied to the releasing arm 18. Theendof dog "16 engages'a locking mechanism indicated at 17, Fig. 2 andmaybe constructed as shown in my oopending.applications 565,156 or572775." It

is intended that? this ("log maybe constructed operating a. cam or leverto adapt it to the type of locking mechanism used. shown in the drawingthe upwar'd'movement of 17 releasesthe lock.

' The releasing arm oathe moving ddor' I indicated at 24 and issupportedbyyshaft 25 moving in sleeve 26 which is's'upportd by thehearing lugs 27 ingthe bracket 28. On

sleeve 26.t he panic-bolt 29 is pivotedand is held in the releasedposition by the coil.

spring 36.. The sleeve 26 is provided with a camslot shown at 31, Fig/'5andfshaft 25 isprovidedwith a pin 32, Fig. 3 arranged to move freely inslot 31. The end of this pin projects above sleeve'26 and engages alongitudinal slot of key-way'33, Fig. 3, in the bearing of 29. Inassembling, the shaft 25 is insertedin sleeve 26 and then pin 32 isinserted througlnthe slot and until the pin is vertical, this aligiistlisleeve in position for thescrews 35 which securely fasten itrigid'iviththe lugs 27.

: i-Wh eit e o t QJ I U-eeQ .r sere, t e ds ,to "rotate 'I1 thes ve2. eagi P1 11 2. through si e: atten to irr a e. th s Pie e s Th g id d byfhefi ed .slot 31 and tlieflilgveinerit of shaft '25 is eg jbeile of;this slot d rect ii's, slot, it wi fiote'd has' inclin d 2 w ds he 6 std r i g g s; i will li e xv rc. t

. ha itiextenfl' y n h;-x pq ng'.1-2 carryin with a the Zjwhiclil thus;ete into the plane f' her hd g' rm Z: Tlefend r' i ar o .ammee {11s r ned brisi iiel tic liehepcl es edieeedet i i 41; i thawhenr n ti o tee y-It will be noted from the; shape, of; the slot that, continued movement.oi arm 2 9 will rotate haftgea thus; applying"an inwa d v n jet t erelee ieg e m 2 e 1 t r by t e door, sThe igrelationl of the arm 24 t'olarm 22 shown; in Flg. 6 when t e r as PQ t Q Th p i s igg a'zest r eg hel tq i t P f 2, backw rds through the, sldtj a id brings arm 24 Iintoitsnormal posit-ion. "Attentionis' called hmger 5O of the, ii

to the fact that the arm 2 is longer than arm,22, the increased:movement thussecured. at the end, of this arm, enables it: to releasethe lock with less an ular movement of shaft 25 than is require ofshatttv 15 so that the lock will release with approximately the. sameinward movement; of bolt 29 asof bolt 21. a 5,

It will he noted li'om 6 that in applying this mechanism very. littlechange is required in standard, mechanisms of this kind, theconstruction is compact, simple,

easy to assemble not likely to get out of order. he clez' rancesareshown in Fig. 7 in whichl' i O flindieates the stationnry door and 41 isthe moving door; T hi,s.door opens in the clearance m by a knolx orlatch without confl cting with theffiieddoou.

The latching mechanism at that-op 0f the doormaybe. operated asindicated byFigs.

;l, 23nd 8, in which 45 isan up and down rod operated: by 16, l his rodenters a mechanism ,iti andi has a cylindrical end 47 as, shown whichis; provided with a semicircular open'ingto en age the circular end :otlever 48 pivoted-at; The opposite end of this lever en'g es asimilaropening in liitoh 51. ,It yillbenolled lat- 311 upward movementof rod 45 will l cause, a downward niovement of the latch and .yiceversa; sothat theivfeight of rod 45 tends to hold the latch in'theengaging post arent howveve r that the principles of the inventionm'azyhave' a much wider application and I do l Qtyvisl my inventiontoube regarded as sicofistr'guetiensoiely use 011 d ble d orsclaim;

1. I :ad'qaslpek,tea si ie beaie d ub oors," locking hi h nismf door, a"releasing inechanfstmon the door, said mechanisn' s.placed onsaidvdqp'i's as not {to project'b ond-"t hs abutting edges tli'ei reo fand'means for mofigigihe'releasingmechanisni to en ge said' locliiiigmechanism; whereby said oekin mechen-ism 'is operatedf to. release thedoor cdwthich iti's '2, int ao sleclg erfl ee aeeesghtea ier d bledoors, a. i mgelsewhere emme an ai'releasihg megaheifiitfio' "weathercloontliese eeheiiisms pqe ea e gamut-er so as not to; project beyondenembaeglng 'ed'ge s th reof; mfihs fdr lmwreie' aipreliminarymbi'nienttdfthe re easiil' weetie nism 'bripg'ing it' into. the planehdlbck- 'c'lou-ble doors, ajloieldqgmehaiii nthavinga shaft with an armon ened'derg'timparting a side movement to the releasin arm bringing itinto efigfage'tfientfxvitlftlie locking mechanism andme'ans for operatinthe locking mechanismby said arm, 1- Y .4. In a dQQl ldgili of theclassdeseribed for double doors, ocking'mechanismwiflm "releasing memberon one doo r, a releasing 1'neclianism.\'vith a reileiising arm theother door, these niecliadislns placed sa'idQdoOts so as not to projectbeyon-d ithe abutting edges thereof and. meansfey operatin said lockingmechanism by a1 combined si e and rotary movement of said releasing" arm5. In a door lock of the class desci'ibedir'or double doors, a Ioc'lritlme hanism liavi'n'g'a rotaryreleasing memfir one door, afre-v leasin'mechanism havinga rotatin arm on the ot ie'r door,.t1'1e'se mechanisms ptread on said doors so as not to project beyond the abutting edgesthereof and meats "fol" impartingaprotary motion to said releasingmember ffom'sai'd rotating arm;

6. In a am lock of the class described, the combination of a bracketsecured to a door and supporting ahorizontai releasing belt, a releasingarm pivoted to said bracket and means for lmparting a side and rotarymovement to sald arm by the movement of said bolt.

7. In a door lock of the class described, the combination of a bracketsecured to a door and supporting a releasing bolt, a releasing memberpivoted to said door, means for imparting a movement to said pivotmoving said arm beyond the edge of said door and means for rotating saidarm on said pivot by the movement of said releasing bolt.

8. In a door lock of the class described, the combination of a bracketsecured to a door, a sleeve with a cam formation rigidly secured to saidbracket, an operating bolt pivoted on said sleeve, a shaft pivoted insaid sleeve and having a releasing lever associated therewith, saidshaft operatively connected with said sleeve and said bolt.

9. In a door lock of the class described, the combination of a lockingmechanism having a releasing arm working on a pivot, a releasingmechanism having a releasing lever working on a pivot, means forbringing said releasing arm into engagement with said releasing lever,said releasing lever being longer than said releasing arm and means foroperating said releasing lever through its pivot.

10. In a door lock of the class described, the combination of a lockingmechanism, a vertical rod associated with said mechanism, a latch andplunger at the top of said door, a pivoted lever connecting saidvertical rod with said plunger whereby their direction of movement isreversed, said lever having rounded ends and engaging rounded aperturesin said rod and plunger.

11. In a door lock of the class described for double doors, a mechanismfor locking one door at top and bottom, a mechanism on the other doorfor releasing said locking mechanism, said releasing mechanism comuprising a horizontal releasing bar, a device normally standing withinthe plane of said door and operated by said bar to extend beyond theplane of said door and release said locking mechanism.

Signed at New York in the county of New York and State of New York this8th day of March, A. D. 1923.

HARRY W. DYER.

